Process of and apparatus for extinguishing fire.



W. W. WALKER.

PROCESS OF AND APPARATUS- FOR EXTINGUISHING FIRE.

APPLICATION FILED DEC. 29. l9i6.

1,299,272. I Patented A r. 1,1919.

$15 attozwzif),

. gM R berwhich forms a part of the nozzle, said stains Parisian lurch.

marten w. trauma, or camera, NEW JERSEY, Assronon, BY MESNE ASSIGNMENTS,

no return rmnron'rn ooinranr, on NEW YORK, N..Y., A conrona'rron or DELA- wean.

PROCESS OF A..- APPARATUS FOR EXTINGUISIi ING FIRE.

specification of Letters Patent.

Patented Apr. i, rein.

Application filed December 29, 192 .6. Serial No. 139, M4.

To all whom it may concern.

Be itknown that 1, WILLIAM W. WALKER,

a citizen of the United States, residing at Camden, in the county of Camden and State r of New Jersey, have invented certain new and useful Improvements in Processes of and Apparatus for Extinguishing Fire, of which the following is a specification.

; This invention relates to a process ofand apparatus for extinguishing fire.

.The principal object of the invention is to extinguish fire by the process of conducting two separatedand different solutions which are under pressure, from their source which may be an'apparatus of a portable nature, such for instance as the one shown in my Patent No. 1,186,250, although the apparatus may be usedin any other con:

nection with any other source to allow the conunixture of. such solutions at a point in close proximity. to the fire and at the same time to allow the commingling solutions to be projected and scattered under pressure at any and all points about the place of its employment so that a more efiectual smother-' ing or'extinguishment of the fire can be accomplished.

Another object of the invention is to provide readily portable means in the nature of a nozzle, which first receives the solutions in. their separate condition to be subsequently brought together therein and projec'ted therefrom in the form of a stream.

lVieans are also provided Which include a flexible element to connect said nozzle with the source of supply of said solutions, the

second mentioned means also including means fornormally preventing the flow of the solutions in their separate condition to said nozzle which in accordance with this invention may be at a very remote point from the source of supply of the solutions so that a better extinguishing agentwill result as well as permitting of its employ ment in a more efiicacious manner.

Another object of the present invention. 1 is to provide a readily movable portable nozzle, which receives the solutions in their separate condition, the said nozzle including a valve for regulating the flow of the solutions, so that they will flow simultaneously and in proper quantities to a mixlngchamnozzle also having a reducing chamber to projected at 2. hi her velocity and to a greater distance. eaction of the solutions occurring gradually as they leave the nozzle "in the form of a stream through the air. Hence deterioration of the commixing solutions cannot occur, Which is a great advantags; the gaseous foam forming at the fire with all of its inherent extinguishing qualities.

In the drawings:

Figure 1 is an elevation illustrating and merely representative of the apparatus connected to a source from which different foamproducing chemical .solutions are drawn under pressure.

Fig. 2 is a plan view showing in section the means for nor mally preventing the flow of the solutions from their source to the nozzle, the means is in the nature of a twoport four-way valve and it is hown in open position.

Fig. 3 is a longitudinal horizontal sectional view of the nozzle taken on the line 3-3 in Fig. 1.

Fig. 4 is an end elevation of the nozzle. Fig. 5 is a transverse sectional view taken on the line ,55 in Fig. 3 and looking in the direction as indicated by the arrow.

Fig. 6 is a detail sectional view of the duplex hose. v

Referring now to the drawings in detail, the numeral 1 designates a portion of a vessel or vessels which contains under pressure in a separate condition two solutio which when commixed, generate a gas non supporting to combustion. One of the so-- lutions or both, preferably one, contains an admixture, preferably a. substance or material which when combined with the one solution operates to produce a blanhet ing or smothering foam when commixedwith the. other solution to prevent the mentioned generated gas from escaping into the atmospheric air in and during the employment of the solutions. Outlet pipes 2-2 conduct the' solutions from the vessel or vessels to a. standard four-Way valve 3, which normally prevents the flow of the solutions through the flexible duplex hose 4 to the nozzle 5.

The nozzle 5 consists of a barrel 6 having inlet ducts 7 therein, which communicate with a valve chamber 8. Nipples 9 are formed on the endof the barrel 6 and in which the ducts 7 are continued. The duplex hose e connects the nozzle 5 with the four-way valve 3 through said nipples 9. The wall 10 oi the valve chamber 8 is provided with ports 11-11, which are in direct communication with the mixing chamber 12' of the barrel (5. llhe end of the barrel 6 having the mixing chamber 12 therein is externally screw threaded so as to accomtill modate the reducing section 13 of the nozzle so called'because of its tapering nature. lit will also be noticed that mixing chamber 1'2 is of a tapering nature, tapering as it does'toward the reducing chamber ll; the reducing chamber being as it were, a continnation oi the mixing chamber 12. it will also be noticed that the ducts 7 converge toward the valve chamber 8. the reason therefore will appear. Positioned in the valve chamber 8 for turning movement is a cone-shaped valve 15, having transverse passage lib-16 therein. Said passages when the valve 15 is turned are adapted to establish communication between the inlet ducts 7 and the mixing chamber 12. The valve 15 is held in place in the valve chamber 8 by a nut 17 and the valve is provided witlrapei turecl extensions l8 adapting them toreceivc a forked actuating; handle 19. The handlev 19 is provided with stop-member: 20 which limit the movement oithe valve to open or closed position.

The valve 15 when brought to its open osition permits the How of thesolutions which. as stated are under pressure, from the vessel 1, to the'mixing chamber 1. The valve 3 at this time, of course, has been opened as shown in Fig. The solutions are maintained in their separate condition from the time they leave the vessel until they reach the nozzle. The'solutions lincl theirway into the inlet ducts 7 of the barrel '6 and as best perceived in 3, the solo ti0ns will be caused to flow toward each other Without sudden agitation to cause their commixtnre, the ilow occurring rather smoothly into the reducing chamber 14-.

As will be understood, the separate streams which enter chamber 12 ere not delivered in such form as to provide for a complete admixture in such chamber, the latter not being; oil a capacity Which will permit the expansion action produced during reaction otthe componentelements of the extinguish-- ing' medium. Arid since the cross sectional area or the flow path of the combined Streams is further decreased in passing into and through the nozzle 13, it will be readily understood that complete admixture does not take place prior to the discharge oi the composite stream from chamber ilfl.

Sihis action is advantageonsin that the production of the gaseous medium with its foam is retarded although the separate streams are brought together. 'Thisaotion notonly delays the activ ty oi the reactions which telze place so as to least a. Y

come spent in traveling to such point of application. In fact," the completion oi the foam is had some distance from the dis charge end of the nozzle.

till

As will be readily understood, this method of delivering the stream is 0t advantage through the fact that not only is it possible to use a portable nozzle which'can be moved quickly trom point to point, but in addition the extinguishing medium can be applied a the of that type which will prevent a close approach thereto, the ability to complete the medium at a point spaced from nd in ad.- vance of the discharge end of the nozzle providing special advantages in lighting fires oi? this type. I

l-do not wish to be understood to be limit ingmyself to the construction and arrange ment of parts shown nor to a particular rangement thereof as I am aware that changes and alterations may be resorted without departing from the spirit oilfithe invention or the scope of the appended claims.

What I claim is: I l. The herein described process for o tinguishing fire wherein the extinguishing medium is formed from two normally sepa rated solutions which;whencommiiied, pro duce a foam-extinguishing compound, said process consisting in delivering the separated solutions under pressure to a nozzle-carried chamber having a lengthinsuilicient to pro dues complete commixtureof the sohrtione discharging the chamber contents l'rointhe nozzle in stream form-and antler pressere. completion of the commixttire and oi the reaction occurring during stream. travel to the point oi? application.

2. In apparatus for extingnishingfires hy an extinguishing compound orthe' foam-ea tinguishing type formedfrom a plurality solutions and wherein the solutions are normally maintained. separate and arefbronght together to permit chemical reaction to pro-- dnce the compound, and in combinatioh, a stream-discharging nozzle having a chamber, sources of solution s opii'ly', aml'incle:

pendent conduits connecting said 'sourees with the chamber forconcurrently deliver;

ing the solutionsto the" chamber under pres sure to unitet'he"separatelv deliveregl solo t1ons intcstream. formation and place solstice "components in gene int lift

Li li? .and cross and longitudinal sections to permit free passagw .of the composite stream thcrcthrough with the stream form and solution pressure maintained and with the time of passage insuflicient to permit complete reaction commixture of the combined solutions in advance of reaching the nozzle discharge, said nozzle providing a stream discharge under pressure tending to maintain the stream form until the point of application is reached, whereby solution reaction will proceed during stream travel to such point to deliver stream components infoaniextinguishing condition.

3. In apparatus for extinguishing fires by an extinguishing compound of the foam-extinguishing type formed from a plurality of solutions and wherein the solutions are normally maintained separate and are brought together to permit chemical reaction to produce the compound, and in combination, a

7 portable stream-discharging nozzle having a chamber, sources of solution supply, and independent conduits connecting said sources with the chamber for concurrently delivering the solutions to the chamber under pressure to unite the separately-delivered solutions into'stream formation and place the solution components in general reacting relation, said conduits having a valve structure for concurrently controlling the passage of the solutions in said conduits, said valve structure being spaced from the nozzle and flexibly connected thereto, said chamber having a length and cross and longitudinal sections to permit free passage of the composite stream therethrough with the stream form and solution pressure maintained and with the'time of passage insufiicient topermit complete reaction commixture of the combined solutions in advance of reaching the nozzle discharge, said nozzle providing a stream discharge underpressure tending to maintain the stream form until the point of application is reached, whereby solution reaction will proceed during stream travel to such point to deliver stream components in foam-extinguishing condition.

In apparatus" for extinguishin fires by an extinguishing compound" of t e foamextinguishing type formed from a plurality of solutions and wherein the solutions are normally maintained separate and are brought together to permit chemical reaction space under pressure to stream of sufficient velocity to be 'ro ected form a to produce the compound, and in combina tion, a portable stream-discharging nozzle having a chamber, sources of solution supply and independent conduits connecting said sources with the chamber for concurrently delivering the solutions to the chamber under pressure ltO unite the separately-delivered solutions into stream formation and place the solution components in general reacting relation, said nozzle including a member having a barrel section and a tubular reduced section. said barrel section having independent passageways connecting the conduits with said tubular section, valve mechaism for concurrently controlling sageways, and a nozzle section carried by said tubular section, said tubular and nozzle sections combinedly formin the receiving chamber for the solutions, said chamber havsaid pasing a length and cross and longitudinal sections to permit free passage of stream therethrough with the and solution pressure maintained and with the time of passage insuflicient to permit complete reac-tioncommixture of the 001m bined Solutions in advance of reaching the nozzle discharge, said nozzle providing a. stream discharge maintain the stream form in reaching the point of application, whereby solution reaction will proceed during stream travel to such point to deliver stream components in foam-extinguishing condition.

5. The processof forming a fire-extinguishing medium of the foam'extinguishing type, which consists in delivering the component elements of the medium, in the form of separate streams, to and passing them under pressureand in contact, through a chamber of insufiicientcapacity to permit complete admixture of component elements and production of foam, and delivering this combined streams from the chamber into produce a com site the composite stream form in stream form and to travel in an distance suflicienit to permit completion of the medium to fire-extinguishingcondition. In testimony whereof I 'aifix my signature in the presence of two witnesses.

WiLLLtM W. WALKER. Witnesses WALTER L. Baiiriiomiaaw, ANDREW KETER.

under pressure tending to 

